<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>列表的排序</title>
    <script src="../js/vue.js"></script>
    <script src="../js/阻止vue在启动时生成生产提示.js"></script>
</head>

<body>
    <div id="root">
        <h2>人员列表</h2>
        <button @click="updateMei">更新马冬梅的信息</button>
        <ul>
            <li v-for="(p,index) of persons " :key="index">
                {{p.name}}-{{p.age}}-{{p.sex}}
            </li>
        </ul>
    </div>

</body>
<script>
    const vm = new Vue({
        el: '#root',
        data: {
            persons: [{
                    id: '001',
                    name: '马冬梅',
                    age: 30,
                    sex: '女'
                },
                {
                    id: '002',
                    name: '周冬雨',
                    age: 31,
                    sex: '女'
                },
                {
                    id: '003',
                    name: '周杰伦',
                    age: 18,
                    sex: '男'
                },
                {
                    id: '004',
                    name: '温兆伦',
                    age: 19,
                    sex: '男'
                }
            ]
        },
        methods:{
            updateMei(){
                /* this.persons[0].name = '马老师';  //奏效
                this.persons[0].age = 50;      //奏效
                this.persons[0].sex = '男'; //奏效 */
                // this.persons[0] = { id: '002', name: '马老师', age: 50, sex:'男' }; //这样修改vue是无法监测数据的
                this.persons.splice(0,1,{ id: '001', name: '马老师', age: 50, sex:'男' })
            }

        }
    })
</script>

</html>